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tait@ tates get-ent @Hita IMPROVEMENT *BLIND-FASTBNERS,

G. TRUMAN SMITH AND WILLIAM E. SPARKS, OF NEW, HAVEN, 00N- NECTIGUT.

Letters Patent No. 60,584, dated December 18, 1866. l

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T ALL WHOM IT MAY CONCERN:

Be it known that we, G. TRUMAN SMITH and WILLIAM E. SPARKS, of New Haven, in the county of New Haven, and State of Connecticut,l have invented a new Improvement in Blind-Fasteners; and we do hereby declare the following, when taken in connection with the accompanying drawings, and the Iletters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent in Figure 1, the blind as closed and secured upon the inside.

' Figure 2, the blind open and secured upon the outside.

Figures 3, 4, 5,- and-G, the parts of the fastener detached; and in Figure 7, the same parts as put together for use.

Our invention relates to an vimprovement in that class of blind-fastenings designed to secure the blind upon thel inside so that it may not be opened from the outside; and to enable others skilled infthe artto construct und. apply our invention, we will proceed to describe the same as -illustrnrdinthe accompanying drawings.

A is the latch which secures the blind when open, seen in iig. 8, an`d is provided with a tail-piece, B, which extends through the blind, as seen in fg. 1, forming a lever. by which'to operate the latch, A. C is a latch of similar form which secures the blind upon the inside. The two latches-are formed upon plates, D, so that when placed together, 'as in fig. 7, there will be formed a recess between the two said .plates to receive a spring, E,

` jig, 4, and as denoted in rod, iig. 7. Centrally through the. two plates, D, is placed a pivot, d, as seen in figs. 5

and 7. The two latches'eay be itted, and the said pivot secure themtinto a plate by which they may be secured in the blind, yet asmall mortise through the blind, ahd the parts placed, therein as seen in, iig` 1, may there be securedhy the pivot as seen in fig. 1. The blind is secured upon the in side by the latch, Q, catching upon a pin or other device, a, upon the window sill, and when open, by the latch, A, latching upon a hook orl other device, b, upon the wall in the usual manner.y To open the blind, press back the latch, C, as denoted in red; this movement, thoughupon the same pivot as the latch, A, has no effect upon 'the latch, A, each latch in itsown movement being independent of the other. Thus moved from the catch, a, the blind is opened Vin the vusual manner, and swung around to the position denoted in fig. 2; the latch, A, catches .upon the hook, b, and

secures the blind in that position, from which it may be released by pressing the lever, B, into the positiondenoted in red, which turns the latch from the hook, b, as also denoted in rcd'; thus it will be seen that when the blind is closed it cannot bc opened by any movement oi" the latch, A, upon the outside.

Having therefore thus fnlly described our invention, what we claim as new and useful, and desire to secure lby Letters Patent, is-

The combination of the latch A, provided with the lever B, with the latch C, when constructed and arranged so as to operate in the manner and for the purpose specified.

G. TRUMAN SMITH, WILLIAM E. SPARKS.

Witnesses:

JonN E. Enum-z, Amsm J. Tissus. 

